public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(
root,
context.Span,
out ExpressionSyntax expression,
predicate: f => f.IsKind(
SyntaxKind.InvocationExpression,
SyntaxKind.ElementAccessExpression,
SyntaxKind.ConditionalAccessExpression)))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
CodeAction codeAction = CodeAction.Create(
"Fix formatting",
ct =>
{
TextLineCollection lines = expression.SyntaxTree.GetText().Lines;
TextLine line = lines.GetLineFromPosition(expression.SpanStart);
TextSpan span = TextSpan.FromBounds(line.EndIncludingLineBreak, expression.Span.End);
return(CodeFixHelpers.FixCallChainAsync(document, expression, span, ct));
},
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out BlockSyntax block))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddNewLineAfterOpeningBraceOfBlock:
case DiagnosticIdentifiers.AddNewLineAfterOpeningBraceOfEmptyBlock:
case DiagnosticIdentifiers.AddNewLineAfterOpeningBraceOfAccessor:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => CodeFixHelpers.AddNewLineAfterOpeningBraceAsync(document, block, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out TypeParameterConstraintClauseSyntax constraintClause))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct =>
{
return(CodeFixHelpers.AddNewLineBeforeAndIncreaseIndentationAsync(
document,
constraintClause.WhereKeyword,
constraintClause.Parent.GetIndentation(ct),
ct));
},
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out BinaryExpressionSyntax binaryExpression))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
if (DiagnosticProperties.ContainsInvert(diagnostic.Properties))
{
CodeAction codeAction = CodeAction.Create(
$"Add newline after '{binaryExpression.OperatorToken.ToString()}' instead of before it",
ct => CodeFixHelpers.AddNewLineAfterInsteadOfBeforeAsync(document, binaryExpression.Left, binaryExpression.OperatorToken, binaryExpression.Right, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
CodeAction codeAction = CodeAction.Create(
$"Add newline before '{binaryExpression.OperatorToken.ToString()}' instead of after it",
ct => CodeFixHelpers.AddNewLineBeforeInsteadOfAfterAsync(document, binaryExpression.Left, binaryExpression.OperatorToken, binaryExpression.Right, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
if (!TryFindTrivia(root, context.Span.Start, out SyntaxTrivia trivia, findInsideTrivia: false))
{
return;
}
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddEmptyLineBetweenAccessors:
case DiagnosticIdentifiers.AddEmptyLineBetweenSingleLineAccessors:
case DiagnosticIdentifiers.AddEmptyLineBetweenUsingDirectivesWithDifferentRootNamespace:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddEmptyLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, trivia.Token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.RemoveEmptyLineBetweenSingleLineAccessors:
case DiagnosticIdentifiers.RemoveEmptyLineBetweenUsingDirectivesWithDifferentRootNamespace:
case DiagnosticIdentifiers.RemoveEmptyLineBetweenUsingDirectivesWithSameRootNamespace:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.RemoveEmptyLine,
ct => CodeFixHelpers.RemoveEmptyLinesBeforeAsync(document, trivia.Token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.RemoveNewLineBeforeBaseList:
case DiagnosticIdentifiers.RemoveNewLineBetweenClosingBraceAndWhileKeyword:
case DiagnosticIdentifiers.RemoveNewLineBetweenIfKeywordAndElseKeyword:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.RemoveNewLine,
ct => CodeFixHelpers.ReplaceTriviaBetweenAsync(document, trivia.Token, trivia.Token.GetNextToken(), cancellationToken: ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out StatementSyntax statement))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddNewLineBeforeStatement:
case DiagnosticIdentifiers.AddNewLineBeforeEmbeddedStatement:
case DiagnosticIdentifiers.AddNewLineAfterSwitchLabel:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => AddNewLineBeforeStatementAsync(document, statement, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddEmptyLineAfterEmbeddedStatement:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddEmptyLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, statement, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddEmptyLineBeforeClosingBraceOfDoStatement:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddEmptyLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, statement, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
private static Task <Document> AddBlankLineAfterRegionDirectiveAndBeforeEndRegionAsync(
Document document,
DirectiveTriviaSyntax directiveTrivia,
CancellationToken cancellationToken)
{
switch (directiveTrivia.Kind())
{
case SyntaxKind.RegionDirectiveTrivia:
return(CodeFixHelpers.AddBlankLineAfterDirectiveAsync(document, directiveTrivia, cancellationToken));
case SyntaxKind.EndRegionDirectiveTrivia:
return(CodeFixHelpers.AddBlankLineBeforeDirectiveAsync(document, directiveTrivia, cancellationToken));
default:
throw new InvalidOperationException();
}
}
public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out MemberDeclarationSyntax memberDeclaration))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.FormatTypeDeclarationBraces:
{
CodeAction codeAction = CodeAction.Create(
"Format braces on multiple lines",
ct => FormatTypeDeclarationBracesOnMultipleLinesAsync(document, memberDeclaration, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.PutConstructorInitializerOnItsOwnLine:
{
CodeAction codeAction = CodeAction.Create(
"Put constructor initializer on its own line",
ct =>
{
return(CodeFixHelpers.AddNewLineBeforeAndIncreaseIndentationAsync(
document,
((ConstructorDeclarationSyntax)memberDeclaration).Initializer.ColonToken,
SyntaxTriviaAnalysis.AnalyzeIndentation(memberDeclaration, ct),
ct));
},
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
private static Task <Document> AddNewLineAfterConditionalOperatorInsteadOfBeforeItAsync(
Document document,
ConditionalExpressionSyntax conditionalExpression,
CancellationToken cancellationToken)
{
ExpressionSyntax condition = conditionalExpression.Condition;
ExpressionSyntax whenTrue = conditionalExpression.WhenTrue;
ExpressionSyntax whenFalse = conditionalExpression.WhenFalse;
SyntaxToken questionToken = conditionalExpression.QuestionToken;
SyntaxToken colonToken = conditionalExpression.ColonToken;
ExpressionSyntax newCondition = condition;
ExpressionSyntax newWhenTrue = whenTrue;
ExpressionSyntax newWhenFalse = whenFalse;
SyntaxToken newQuestionToken = questionToken;
SyntaxToken newColonToken = colonToken;
if (SyntaxTriviaAnalysis.IsTokenPrecededWithNewLineAndNotFollowedWithNewLine(condition, questionToken, whenTrue))
{
var(left, token, right) = CodeFixHelpers.AddNewLineAfterTokenInsteadOfBeforeIt(condition, questionToken, whenTrue);
newCondition = left;
newQuestionToken = token;
newWhenTrue = right;
}
if (SyntaxTriviaAnalysis.IsTokenPrecededWithNewLineAndNotFollowedWithNewLine(whenTrue, colonToken, whenFalse))
{
var(left, token, right) = CodeFixHelpers.AddNewLineAfterTokenInsteadOfBeforeIt(newWhenTrue, colonToken, whenFalse);
newWhenTrue = left;
newColonToken = token;
newWhenFalse = right;
}
ConditionalExpressionSyntax newConditionalExpression = ConditionalExpression(
newCondition,
newQuestionToken,
newWhenTrue,
newColonToken,
newWhenFalse);
return(document.ReplaceNodeAsync(conditionalExpression, newConditionalExpression, cancellationToken));
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out MemberDeclarationSyntax memberDeclaration))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddNewLineAfterOpeningBraceOfTypeDeclaration:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => AddNewLineAfterOpeningBraceOfTypeDeclarationAsync(document, memberDeclaration, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineBeforeConstructorInitializer:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct =>
{
return(CodeFixHelpers.AddNewLineBeforeAndIncreaseIndentationAsync(
document,
((ConstructorDeclarationSyntax)memberDeclaration).Initializer.ColonToken,
SyntaxTriviaAnalysis.AnalyzeIndentation(memberDeclaration, ct),
ct));
},
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out SwitchSectionSyntax switchSection))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, switchSection, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out BinaryExpressionSyntax binaryExpression))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
CodeAction codeAction = CodeAction.Create(
"Fix formatting",
ct => CodeFixHelpers.FixBinaryExpressionAsync(document, binaryExpression, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out ConditionalAccessExpressionSyntax conditionalAccess))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
if (diagnostic.Properties.TryGetValue(nameof(NewLinePosition), out string newLinePositionRaw) &&
Enum.TryParse(newLinePositionRaw, out NewLinePosition newLinePosition) &&
newLinePosition == NewLinePosition.After)
{
CodeAction codeAction = CodeAction.Create(
$"Place '{conditionalAccess.OperatorToken.ToString()}' on the previous line",
ct => CodeFixHelpers.AddNewLineAfterInsteadOfBeforeAsync(
document,
conditionalAccess.Expression,
conditionalAccess.OperatorToken,
conditionalAccess.WhenNotNull,
ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
CodeAction codeAction = CodeAction.Create(
$"Place '{conditionalAccess.OperatorToken.ToString()}' on the next line",
ct => CodeFixHelpers.AddNewLineBeforeInsteadOfAfterAsync(
document,
conditionalAccess.Expression,
conditionalAccess.OperatorToken,
conditionalAccess.WhenNotNull,
ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
if (!TryFindTrivia(root, context.Span.Start, out SyntaxTrivia trivia, findInsideTrivia: false))
{
return;
}
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddEmptyLineBetweenDeclarations:
case DiagnosticIdentifiers.AddEmptyLineBetweenSingleLineDeclarations:
case DiagnosticIdentifiers.AddEmptyLineBetweenDeclarationAndDocumentationComment:
case DiagnosticIdentifiers.AddEmptyLineBetweenSingleLineDeclarationsOfDifferentKind:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddEmptyLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, trivia.Token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.RemoveEmptyLineBetweenSingleLineDeclarationsOfSameKind:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.RemoveEmptyLine,
ct => CodeFixHelpers.RemoveEmptyLinesBeforeAsync(document, trivia.Token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindToken(root, context.Span.Start, out SyntaxToken token))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddEmptyLineBetweenBlockAndStatement:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddEmptyLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineBeforeConditionalOperatorInsteadOfAfterItOrViceVersa:
{
if (DiagnosticProperties.ContainsInvert(diagnostic.Properties))
{
var conditionalExpression = (ConditionalExpressionSyntax)token.Parent;
string title = null;
if (token.IsKind(SyntaxKind.QuestionToken))
{
title = (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(conditionalExpression.WhenTrue, conditionalExpression.ColonToken, conditionalExpression.WhenFalse))
? "Add newline after '?' and ':' instead of before it"
: "Add newline after '?' instead of before it";
}
else
{
title = "Add newline after ':' instead of before it";
}
CodeAction codeAction = CodeAction.Create(
title,
ct => AddNewLineAfterConditionalOperatorInsteadOfBeforeItAsync(document, conditionalExpression, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
var conditionalExpression = (ConditionalExpressionSyntax)token.Parent;
string title = null;
if (token.IsKind(SyntaxKind.QuestionToken))
{
title = (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(conditionalExpression.WhenTrue, conditionalExpression.ColonToken, conditionalExpression.WhenFalse))
? "Add newline before '?' and ':' instead of after it"
: "Add newline before '?' instead of after it";
}
else
{
title = "Add newline before ':' instead of after it";
}
CodeAction codeAction = CodeAction.Create(
title,
ct => AddNewLineBeforeConditionalOperatorInsteadOfAfterItAsync(document, conditionalExpression, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
break;
}
case DiagnosticIdentifiers.AddNewLineBeforeExpressionBodyArrowInsteadOfAfterItOrViceVersa:
case DiagnosticIdentifiers.AddNewLineBeforeEqualsSignInsteadOfAfterItOrViceVersa:
{
AddNewLineBeforeOrAfter();
break;
}
case DiagnosticIdentifiers.AddNewLineAfterAttributeList:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => CodeFixHelpers.AddNewLineBeforeAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineBetweenClosingBraceAndWhileKeywordOrViceVersa:
{
if (DiagnosticProperties.ContainsInvert(diagnostic.Properties))
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.RemoveNewLine,
ct => CodeFixHelpers.ReplaceTriviaBetweenAsync(document, token, token.GetNextToken(), cancellationToken: ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => CodeFixHelpers.AddNewLineBeforeAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
break;
}
}
void AddNewLineBeforeOrAfter()
{
if (DiagnosticProperties.ContainsInvert(diagnostic.Properties))
{
CodeAction codeAction = CodeAction.Create(
$"Add newline after '{token}' instead of before it",
ct => CodeFixHelpers.AddNewLineAfterInsteadOfBeforeAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
CodeAction codeAction = CodeAction.Create(
$"Add newline before '{token}' instead of after it",
ct => CodeFixHelpers.AddNewLineBeforeInsteadOfAfterAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindToken(root, context.Span.Start, out SyntaxToken token))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddEmptyLineBetweenBlockAndStatement:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddEmptyLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineBeforeConditionalOperatorInsteadOfAfterIt:
{
var conditionalExpression = (ConditionalExpressionSyntax)token.Parent;
string title = null;
if (token.IsKind(SyntaxKind.QuestionToken))
{
title = (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(conditionalExpression.WhenTrue, conditionalExpression.ColonToken, conditionalExpression.WhenFalse))
? "Add newline before '?' and ':' instead of after it"
: "Add newline before '?' instead of after it";
}
else
{
title = "Add newline before ':' instead of after it";
}
CodeAction codeAction = CodeAction.Create(
title,
ct => AddNewLineBeforeConditionalOperatorInsteadOfAfterItAsync(document, conditionalExpression, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineAfterConditionalOperatorInsteadOfBeforeIt:
{
var conditionalExpression = (ConditionalExpressionSyntax)token.Parent;
string title = null;
if (token.IsKind(SyntaxKind.QuestionToken))
{
title = (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(conditionalExpression.WhenTrue, conditionalExpression.ColonToken, conditionalExpression.WhenFalse))
? "Add newline after '?' and ':' instead of before it"
: "Add newline after '?' instead of before it";
}
else
{
title = "Add newline after ':' instead of before it";
}
CodeAction codeAction = CodeAction.Create(
title,
ct => AddNewLineAfterConditionalOperatorInsteadOfBeforeItAsync(document, conditionalExpression, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineAfterExpressionBodyArrowInsteadOfBeforeIt:
{
CodeAction codeAction = CodeAction.Create(
"Add newline after '=>' instead of before it",
ct =>
{
var expressionBody = (ArrowExpressionClauseSyntax)token.Parent;
return(CodeFixHelpers.AddNewLineAfterInsteadOfBeforeAsync(document, token.GetPreviousToken(), token, expressionBody.Expression, ct));
},
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineBeforeExpressionBodyArrowInsteadOfAfterIt:
{
CodeAction codeAction = CodeAction.Create(
"Add newline before '=>' instead of after it",
ct =>
{
var expressionBody = (ArrowExpressionClauseSyntax)token.Parent;
return(CodeFixHelpers.AddNewLineBeforeInsteadOfAfterAsync(document, token.GetPreviousToken(), token, expressionBody.Expression, ct));
},
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineAfterAttributeList:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => CodeFixHelpers.AddNewLineBeforeAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(
root,
context.Span,
out SyntaxNode node,
findInsideTrivia: true,
predicate: f => f.IsKind(SyntaxKind.UsingDirective, SyntaxKind.RegionDirectiveTrivia, SyntaxKind.EndRegionDirectiveTrivia)))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
switch (node)
{
case UsingDirectiveSyntax usingDirective:
{
if (context.Span.Start == usingDirective.SpanStart)
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddBlankLine,
ct => AddBlankLineBeforeUsingDirectiveAsync(document, usingDirective, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddBlankLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, usingDirective, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
break;
}
case RegionDirectiveTriviaSyntax regionDirective:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddBlankLine,
ct => CodeFixHelpers.AddBlankLineBeforeDirectiveAsync(document, regionDirective, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case EndRegionDirectiveTriviaSyntax endRegionDirective:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddBlankLine,
ct => CodeFixHelpers.AddBlankLineAfterDirectiveAsync(document, endRegionDirective, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
if (!TryFindTrivia(root, context.Span.Start, out SyntaxTrivia trivia, findInsideTrivia: false))
{
return;
}
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddBlankLineAfterTopComment:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddBlankLine,
ct => document.ReplaceTokenAsync(trivia.Token, trivia.Token.AppendEndOfLineToLeadingTrivia(), ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddBlankLineBeforeTopDeclaration:
case DiagnosticIdentifiers.AddBlankLineBetweenAccessors:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddBlankLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, trivia.Token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.BlankLineBetweenSingleLineAccessors:
case DiagnosticIdentifiers.BlankLineBetweenUsingDirectives:
{
if (DiagnosticProperties.ContainsInvert(diagnostic.Properties))
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.RemoveBlankLine,
ct => CodeFixHelpers.RemoveBlankLinesBeforeAsync(document, trivia.Token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddBlankLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, trivia.Token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
break;
}
case DiagnosticIdentifiers.RemoveBlankLineBetweenUsingDirectivesWithSameRootNamespace:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.RemoveBlankLine,
ct => CodeFixHelpers.RemoveBlankLinesBeforeAsync(document, trivia.Token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.RemoveNewLineBeforeBaseList:
case DiagnosticIdentifiers.RemoveNewLineBetweenIfKeywordAndElseKeyword:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.RemoveNewLine,
ct => CodeFixHelpers.ReplaceTriviaBetweenAsync(document, trivia.Token, trivia.Token.GetNextToken(), cancellationToken: ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
